I presume you mean the Irish that lived as opposed to the ones that starved to death - and yes, there were so may in Britian that fell into the starved to death category.
Your assertion that Britain feasted whilst Ireland starved is ludicrous, just laughable.
You DO realise that, then as now, most British people were poor and working class, living in cramped, unsanitary conditions and most of Britain earned a pittance doing back breaking labour or industrial work?. Or do you think Britain is all lords and ladies, and was in 1845?.
Most British people ate poor food and lived on meagre diets in 1845. Feasted?. Dont make me laugh.